Multifunctional vehicle bus jamming device

Abstract

The invention provides a multifunctional vehicle bus interference device, which includes a bus monitoring unit, a parameter setting unit, a control unit and a signal conditioning unit, wherein the parameter setting unit is connected to the control unit; the control unit is connected to the bus monitoring unit ; The signal conditioning unit is connected to the control unit. The interference device can generate a signal that is used to simulate the transmission lines of other electrical and electronic equipment on the train to interfere with the MVB bus when transmitting signals, and output it to the MVB bus to test the reliability of the operation of the MVB bus when there is an interference signal sex and stability.

Description

technical field [0001] The invention relates to communication technology, in particular to a multifunctional vehicle bus interference device. Background technique [0002] The Train Communication Network (TCN for short) is a communication network that transmits various data such as control signals, detection information, and diagnostic information between cars on the train and between various on-board equipment in each car. [0003] Many countries in the world have successfully developed TCN systems with their own characteristics. In order to realize the international standard of vehicle data communication, the International Electrotechnical Commission passed a special standard for train communication network, namely IEC61375-1 TCN standard. In this standard, TCN is divided into the Wire Train Bus (WTB for short) system that connects each section and can be dynamically grouped into cars, and the Multifunction Vehicle Bus (MVB for short) system that connects various on-board ...

AI Technical Summary

Problems solved by technology

[0004] The development of the MVB system is to control the data exchange process between multiple node devices involved in the system under the framework defined by the IEC61375-1 protocol, which involves the needs and responses of each node device itself for data exchange, and the system structure is complex , when the MVB system is built and installed on the train, each node device needs to transmit various data through the MVB bus, and, since the train is equipped with transmission lines for other electrical and electronic equipment, other electrical and electronic equipment transmits signals through the transmission lines , it will interfere with the MVB bus. Therefore, an interference device is needed to simulate the interference signal of the MVB bus in the actual application environment, so as to test the reliability and stability of the operation when the MVB bus has interference signals.

Images